Jeff-A Cheap and Simple Ic Robot


Introduction: Jeff-A Cheap and Simple Ic Robot

About: failure keeps you going. that's what some people say, I say custard creams keep you going. woundnt get though a project with out them

Jeff took 5 weeks to compete and is a simple IC robot. Jeff's main thing is the led headlights witch come on automatically when it is dark. It works by having what is called a current see sore witch when the current is higher on the Ldrs side compare to the Variable resistors side it puts power to chip (Ua741) then puts power to the transistor (BC109)  then to the Leds. Jeff is simple to make but fiddle as you can see he is made from a sandwitch tub,If you what instructions please leave a comment below. 



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    i would love a step-by-step for Jeff please.

    Would be interest to build this with Scouts as part of the Robotics Badge

    It would be great if u could send me the schematic diagram as

    can you please send me the circuit diagram??

    Cool! I want to build it and it would be awesome if there were instructions.

    please! You can send me step by step how to make jeff with BOM instructions.

    can i you send me a message with the circuit and other things ? thankyou

    1 reply

    okay I'll sent the circuit diagram
    and pcb

    We absolutely need a step-by-step instructable for Jeff!

    7 replies

    I am starting a news letter about what I'm doing if you want to receive it please reply

    P.S I have released a step by step for jeff

    I'm replying


    I'll send it right to you
    Do you still want a step by step for Jeff

    I think we all do!

    (How are you sending the newsletter? By PM?)

    Out of ingested what is PM?

    And at the moment I'm sending them just as a private message
    I think I sent you

    Yes, PM is Private Message. I saw the newsletter, I just haven't had to read it yet.


    hope you enjoy it
    Please tell me your thought
    about the next Jeff